<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style type="text/css">
			div{
				background: lightcyan;
				height: 50px;
				margin: 0 auto;
				line-height: 50px;
				text-align: center;
			}
			h2{
				background: lightcoral;
				height: 100px;
				color: white;
				line-height: 100px;
				text-align: center;
			}
			h3{
				background: lightgreen;
				height: 80px;
				line-height: 80px;
				color: white;
				text-align: center;
			}
		</style>
	</head>
	<body>
		<div>
			做项目的第一天!
			今天产生了项目经理!
		</div>
		<h2>
			要分配任务了,好激动哦!!!
		</h2>
		<h3>
			马上要散发能量了!!!
		</h3>
	</body>
</html>
